Digestive system Flashcards
mouth, oesophagus, stomach, pancreas, liver, gallbladder, intestines, rectum
what do the teeth and tongue do in terms of digestion
they do mechanical digestion by grinding it up to increase surface area
what occurs at the mouth
ingestion
what do the salivary glands produce and what enzyme does that contain
saliva, amalyse
what is the oesophagus
a long muscular tube
what is peristalsis
when food moves down due to the muscles contracting and relaxing
What does the stomach produce and what does that do ( acid)
hydrochloric acid and it kills any bacteria in food
does the hydrochloric acid have high or low pH
low ( around 2
what enzyme does the stomach produce and what does it do. also what type of digestion is it
pepsin, it helps break down the proteins in food. chemical digestion
does food flow through the pancreas
no
what does the oancreas do
produces digestive enzymes that are involved in chemical digestion
what enzymes does the pancreas produce
lipase ( breaks down lipids)
protease ( breaks down protein)
amalyse( breaks down starch)
what does the liver do
produces bile ( alkaline substance)
what does the gallbladder do
store bile
what does the small intestine do
absorption
what is absorption
movement of small molecules and water from intestine into the blood
